Instrument cover



FIG. 1 is a top front perspective view of an instrument cover;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof, the right side elevation view being a mirror image thereof;

FIG. 5 is a top elevation view thereof; and,

FIG. 6 is a bottom elevation view thereof.

The broken lines shown in the drawings illustrate portions of the instrument cover that form no part of the claimed design. 

CLAIM The ornamental design for an instrument cover, as shown and described. 